21678426

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{15641}}^1$

素因数の和:15667

約数の個数: 48

約数和(自身を含む): 58563648

約数和(自身を除く): 36885222

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386, 15641, 31282, 46923, 93846, 109487, 140769, 172051, 218974, 281538, 328461, 344102, 516153, 656922, 985383, 1032306, 1204357, 1548459, 1970766, 2408714, 3096918, 3613071, 7226142, 10839213, 21678426]

約数ペア:

[(1, 21678426), (2, 10839213), (3, 7226142), (6, 3613071), (7, 3096918), (9, 2408714), (11, 1970766), (14, 1548459), (18, 1204357), (21, 1032306), (22, 985383), (33, 656922), (42, 516153), (63, 344102), (66, 328461), (77, 281538), (99, 218974), (126, 172051), (154, 140769), (198, 109487), (231, 93846), (462, 46923), (693, 31282), (1386, 15641)]